One of the recent items in the kernel (new for 4.14) is the ORC
stack unwinder, intended to get more accurate traces when a kernel
dumps - so that people can work out what went wrong.
It won't be the default for some time, but I'm trying it on my
4.14-rc kernel builds. And now I've got to the end of LFS and
failed to build the kernel, because this needs libelf :
Makefile:937: *** "Cannot generate ORC metadata for CONFIG_ORC_UNWINDER=y,
please install libelf-dev, libelf-devel or elfutils-libelf-devel". Stop.
For as long as this is not the default, it will be like a lot of
other things and only in BLFS. But if it does become part of the
default x86 config we will have to move it into LFS.
ĸen
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- Unseen Academicals
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